Mattress scrubber



Spt.25,1945. 1 y F. E. HAYS m11 2,385,511

MATTRESS SCRUBBER Filed Nov. 3o, 1943 Patented Sept. 25, 1945 UNITEDSTATES PATENT OFFICE VMATTRESS SCRUBBER Fred E. Hays and Lawrence O.Scott, San Jose, Calf.

Application November 30, 1943, Serial No. 512,398

Z Claims.

In the operation of cleaning plants, it is common practice to cleanmattresses by means of a suitable cleansing liquid and a small scrubbingtool which the operator laboriously works over the surface of themattress, first going over one surface, then laying the tool aside whilehe turns the mattress preparatory to similarly scrubbing the other side.When there are a large number of mattresses to be cleaned this is a slowand laborious process requiring the employment of many operatives andthe duplication of the devices used.

It is, therefore, one object of the present invention to provide meansfor cleaning mattresses quickly and thoroughly, and in such a manner asto require a minimum amount of manual labor.

It is also an object of the invention to provide means of the characterindicated that will obviate the necessity of turning the mattress toclean both sides thereof, and one that will clean mattresses cf varyingthickness with equal facility.

Furthermore, it is an object to provide means of the character indicatedthrough which mattresses may be passed in rapid succession andthoroughly cleaned without other attention than the proper positioningthereof.

Finally it is an object to provide means of the character described thatwill be simple in form and construction, economical to manufacture,strong, durable and highly efcient in its practical application.

In the drawing:

f Figure 1 is an end elevational View of a machine embodying ourinvention, with parts broken away.

Figure 2 is a view on line 2-2 of Figure 1.

Figure 3 is a top plan View of the structure shown in Figure 1.

Figure 4 is a detail section on line 4 4 of Figure 1, greatly enlarged.

In the specific embodiment herein disclosed we show at I-I two tablessupported in any suitable manner on the same horizontal plane but spacedapart at their opposing ends by means of a vertically disposed framework2 which extends the full width of the tables as shown. The two ends ofthe framework 2 are constructed and arranged to form vertical paralleltracks as at 3 and 4.

At 5 is shown a carriage extending the length of the framework 2 andprovided with wheels as 6 and 'I on its two ends by means of which itmay be moved vertically on the tracks 3 and 4. Carriage 5 is suspendedabove the level of the table tops I--I by means of springs 8 connectedthere- Civ to and to a plate 9 on the top of the framework 2.

A cylindrical brush IU is shown mounted to rotate in bearings as II oneither end of the carriage 5, this brush being positioned so that itsworking surface will rotate below the horizontal plane of the bottom ofthe carriage 5, and the length of framework 2.

The brush IIJ is rotated in the direction of the arrow I2 by means ofthe sprocket and chain drive I 3 to the motor I4 on carriage 5.

At I5 is shown a brush similar to the brush III and mounted directlybelow the same to extend slightly above the plane of the tables onbearings II on framework 2 and in parallel relation to brush I9. Thisbrush is rotated in the direction indicated by arrow I1 by means ofsprocket and chain drive I8 to a motor I9 on framework 2,

The washing liquid is applied to either side of the mattress by means ofpipes as 20 and 2| lying .parallel with the tables I-I and mounted onthe framework 2 as at 22 both above and below the plane of said table.Spraying nozzles as 23 are aixed to the said pipes in opposed relationto each other as shown. The liquid is fed to the pipes from a source ofsupply not shown and is controlled by means of a valve at 24.

With the spraying nozzles in operation and the brushes rotating asdescribed, a mattress is laid on the table I, on the side opposite tothe direction of rotation of the two cylindrical brushes, and shovedalong the same in the direction of arrow 25. As the mattress movesbetween the two sets of nozzles it is thoroughly sprayed with thecleaning liquid and moved on until it passes lthrough the space betweenthe two brushes, the Iupper brush and the cage upon which it is mountedbeing forced upwardly as the thickness of the mattress requires. Sincethe movement of the mattress is manually controlled and the brushesrotate at relatively high speed, the said mattress may be moved slowlyor momentarily held stationary if desired to more thoroughly scrub badlysoiled spots.

Although but one specific embodiment of the invention has been hereinillustrated and described, it will be understood that variousalterations in the details of construction and mode of operation may bemade without departing from the scope of the invention as indicated inthe accompanying claims.

We claim:

1. A machine for scrubbing mattresses comprising, a supporting meansproviding a pair of horizontally disposed table tops and a verticalframework disposed between their opposing ends and extending thereabove,a cylindrical brush mounted on the framework in parallel relation withthe table tops, the work contacting portion of the brush extending abovethe plane of the table tops, and means for rotating said brush, acarriage mounted for vertical movement in said framework and springsconnecting said carriage withthe upper portion of the framework tosupport the carriage, a cylindrical scrubbing brush rotatively mountedon the carriage in opposed and parallel relation with the rst mentionedbrush, driving means for the second brush mounted on the carriage,liquid conveying pipes mounted on the framework above and below thetable top level and adjacent said brushes, and spray nozzles mounted onthe pipes to spray liquid on both sides of the mattress prior to itspassage between the brushes.

2. A machine for scrubbing mattresses and the like comprising, asupporting means providing a pair of table tops disposed insubstantially the same horizontal plane and a Vertical frameworkdisposed between their opposing ends and extending thereabove, acylindrical brush mounted on the framework in parallel relation with thetable tops, the work contacting portion of the brush extending above theplane of the table tops, and means for rotating said brush, a carriagemounted for vertical movement in said framework and sprin-gs connectingsaid carriage with the upper portion of the framework to support thecarriage, a cylindrical scrubbing brush rotatively mounted on thecarriage in opposed and parallel relation with the first mentionedbrush, and driving means for the second brush mounted on the carriage.

FRED E. HAYS. LAWRENCE O. SCOTT.

